Hoisting and conveying machine



(No Model.) a Shets-Sheet 1.

' E. NICHOLSON.

HOISTING AND UONVEYING MACHINE.

No. 483,805. Patented Aug. 5, 1890.

(No Model.) 3 Sheets-Sheet 2.

' B. NICHOLSON.

HOISTING AND CONVEYING MACHINE.

No. 438,805. Patented Aug. 5, 1890.

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(No Model.) 3 Sheets-Sheet 3,

E. NICHOLSON.

HOISTING AND CONVEYING MACHINE. I No. 433,805. Patented Aug. 5, 1890.

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" UNITED STATES PATENT OFFicE.

. EZRA NICHOLSON, or CLEVELAND, OHIO.

H' OlSTlNG AND CONVEYING MACHINE.

SPECIFICATION forming part of Letters Patent No. 433,805, dated August 5, 1890.

' Application filed October 15,1888. Serial No. 288,187. (No model.)

To all whom it may concern.-

Be it known that I, EZRA NICHOLSON, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Electric Hoisting and Conveying Machines, of which the following is a specification.

This invention relates to hoisting and conveying machinery, principally adapted for elevating and conveying coal and ore or other material from vessels, &c., in which is provided a bridge-tramway having 'a hinged extension arranged to be adjusted over the hold and hatchways of a vessel or over mines, and a tram-car provided with an electric or other motor for lowering and raising a bucket or for propelling the car as required, also provided with a weighing mechanism for weigh ing the bucket and contents.

tially as illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a tramway and a tram-car embodying my improvements.

Fig. 2 is a front or end elevation of the tramway. Fig. 3 is a top or plan view of the drophinged extension. Fig. 4. isa side elevation of the tram-carwith parts broken away, showing the motor mechanism and the scale-beam weighing mechanism. L Fig. 5 is a top or plan View of thesame, having some portions omitted or broken away to show the'said mechanism. Fig. 6 is a view of the upper part of the tramcar frame-work, transversely seen from that of Fig. 4, to show the construction of the hoisting-sheave and its connection with the weighing mechanism. i Fig. 7 is a detached perspective view of the yoke and hook mechanism for catching and holding the sheave.- Fig. 8 is a top or plan view of the bridge-tramway. Fig. 9 is a shifting mechanism, partly in section, on line 9 9 of Fig. 5, and looking in the direction of thearrow, for, transferring the power of the motor from propelling to the bucket raising and lowering mechanism, and Vice versa. Fig. 10 is an end view of tramcar, showing the motor mechanism and method of connecting same to electric conducting wire. Fig. 11 is an enlarged view of the foot of trestle B, showing roller and means of propelling the trestle for shifting the position of same, showing the driving-pulley attached to a lever-frame and a hand-lever, whereby said pulley is moved for changing its power from one mechanism to the other.

Description of tramway.A represents a bridge-tramway consisting of parallel rails firmly joined together by cross bars and braces. The front end is supported by a vertical trestle B, having suitable base provided with rollers B for shifting the tramway laterally. The rear and central portions of the tramway are supported upon suitable trestles B and 0, having suitable tracks O for shifting the tramway thereupon. Upon the said trestle O is provided a transverse tramway 0, against which the rear ends of the bridgetramways abut. The transverse tramway O is a little lower than bridge-tramways, and is provided with a suitable truck 0 upon which the tram-cars may be run for transferring them from one tramway to another. To enable the bridge-tramways to be easily shifted, they are provided with wheels or rollers running on the tracks on the trestles, and the rollers are connected with gear 0 and pinion a on a crank-shaft 0 by which the tramways are. easily propelled. To the forward .end'of the'bridge-tramway A is hinged an extension D, supported by suitable guys D.

Thislextension is made partly open and partly strengthened by cross-pieces and braces, the open portion being made to enable the bucket to be lowered through to the hold of a vessel lying below. Through the bridge-tramway are also made openings for the same purpose. The bucket on'the tram-car being raised above the tramway allows the tramway to be built with. cross-pieces and braces, thus enabling it to be made cheaper, simpler, and stronger than those which do not raise the bucket above the surface of the tramway. By the side of the track or at any other suitable part of the tramway is provided a trough or suitable conduit E for holding or supporting an electric conducting-wire e, and to the car is attached an arm orlever 6 having a roller on its lower end, which rides upon the said electoo tric wire and is used for conducting electricity to the motor on the car. The extension D is raised and lowered by means of ropes b, sheaves a, a, and a Windlass d.

Description of tram-cctr.A suitable frame F, preferably made of angle-iron, is provided, having wheels f f, with axles f set in boxes or bearings attached .to the frame and arranged to run on the track-rails on the bridgetramways. This frame is left entirely open in its middle part for the purpose of enabling the bucket G, which it carries, to be raised and lowered therethrough. On one end of said frame F is supported the motor mechanism, adapted to either propel the car back and forth on the tramway or for raising and lowering the bucket. In Fig. 4 an electric motor H is shown secured to the frame by any suitable means. The driving-shaft h of said motor has a friction-wheel 71 from which power is transmitted operating the other machinery. One end of the shaft h of said niotor is supported in a hanger 2', Fig. 9, pivotally suspended from lever I, which is also pivotally attached to one end of the frame F. The other andinoving end of said lever I is pivotally attached to a short hanging arm j,

suspended from a lug 9' on an upright lever J. This lever J has its fulcrum on a pin on the frame F, below the said lug 7' and to its lower end is pivotally attached a connecting-rod K, connecting it with the hanger 2' at its junction with the shaft h. extends upward and is operated by a man who rides upon the car and controls all the .movements of the several mechanisms on the car. L is a shaft parallel with the motor-shaft h, and supported in a suitable bearing on the frame F, and carries a friction-wheel Z and a toothed pinion Z which pinion meshes with a gear-wheel m 011 one of the axles f \Vhen it is desired to move the car, the operator throws the friction-wheel 7i into contact with the friction-wheel Z. M is a third shaft parallel'with shaft 71,, and carries a friction-wheel N and a toothed pinion n. O is a fourth parallel shaft situated above the shaft h, and carries a drum 0?, having a gear 0 meshing with the aforesaid pinion n. These shafts have suitable bearings in the side frame-work. The drum is operated when desired by the operator throwing the frictionwheel 7L2 into contact with the friction-wheel N. Over this mechanism is placed a floor upon which the operator stands, and it may be inclosed to protect it from intrusion with out. A brake is'placed on one end of the drum, consisting of a band composed of blocks P P linked together, and arranged to bind upon the rim of the drum for checking or stopping its motion. when desired. This brake is operated by means of a foot-lever p by the operator, which closes and binds the link-band on the rim of the drum. At the top of a triangular frame standing on the car-frame F is provided a sheave and sheave-grappling device and a scale-beam or The lever J weighing mechanism, as follows: To the side frames are secured a ridge-bar R, Fig. 6, and two lower bars R connecting the two sides. Upon the two lower bars are supported two cross-bars Q Q, projecting forward and back. Upon the forward ends is provided a large pulley-wheel Q over which a. rope R from the drum passes, thence to and through a sheave S, and having its end fastened at the rear end of said cross-bars Q Q. The sheave S has a hook to which is hung the bail of the bucket. U is a yoke having an eye or loop by which. it is suspended on the end of a balance-bar V, fulcrumed in a hanger V attached to ridge-bar B, one end of which is connected with scale-beam' NV. The lower parts of the yokeare narrowed and pointed, as seen in Fig. 7. T T are two bars, the upper ends of which are attached to the sides of holes for suspending them on the projecting ends of a stout pin it, inserted through the head of the yoke. The lower ends of said bars T T are made in the form of hooks t t. This yoke and hooked-bar mechanism hangs between the two cross-bars Q Q, and is designed for catching and holding the bucket when desired. This is done by letting the hoisting-rope draw the bucket up so that the sheave S will pass up into the yoke, when its projecting-pin s will spread the yoke-points and the bar-points until it passes above the hooks t on the bars T. Then the hooks close in again and the rope may be slacked up, and the bucket will hang suspended on the hooks. A spring 3* is attached between the bars T T and the yoke for drawing them together. y is a spring-hook attached to the frame of car for holding the bars T T open from the yoke when desired. X is a bell-crank attached to the car-frame, the upper arm of which is connected by a cord to the bars T T, and its other arm is connected by a cord with a foot-lever X This is designed for use by the operator for pulling the bars T T and opening the catchyoke and releasing the bucket therefrom. A wedge 1 is provided for inserting under the pin u, fonsupporting the yoke upon the crossbars Q Q, to relieve the scale-beam from the weight of the bucket and contents when the scale-beam is not in use.

The engine-house and dynamo for generating the electricity for the motors on these cars may be located at any suitable place or distance and the electricity conveyed therefrom by Wires to the points of use. The operations of these mechanisms are performed by the man on the car in manner as follows: To move the car the lever J is thrown over to bring the motor friction-pinion 71, in contact with the friction-wheel l. The operator may by this means propel the car at pleasure back and forth on the tramway. When the car is moved over a vessel or other place, the bucket may be lowered for filling or dumping by its own gravity, first drawing back the yoke U by pressing on the foot-lever X and slacking the brake on the drum. It is again raised by throwing the motor friction-pinion over against the friction-wheel N, which operates the drum and thus hauls up the bucket. Then the bucket being raised above the level of the tramway the motive power may be ap-v plied for moving the car, and when it has ar rived at the required place the bucket may be lowered and its contents dumped, or it may beam V of its weight, the wedge returned to" place, and by pressing on the foot-lever X the hooks on yoke U' are drawn aside and the bucket lowered or dumped, as desired. From the foregoing it will be seen that the entire movements of these mechanisms are under the immediate control and supervision of the operator on the car.

Having described my invention, I claim 1. The combination of the motor-shaft, the

shafts arranged parallel therewith, the levers I J, the links 2' j, and the pitman K, all arranged and adapted to operate substantially as set forth.

2. The combination of the car, the scalebeam hung thereon, the lever or bar-V, con- 5 nected to the scale-beam, the yoke hung on said lever V, and the wedges mounted on the car and bearing on the yoke, as set forth;

3. The combination of the car, the scalebeam hung thereon, the lever or bar V, connected to the scale-beam, and the yoke hung on said lever and adapted to support the bucket, as setforth.

at. In a machine for conveying and hoisting,

the combination, with an open tram-car provided with an electric motor and a-hoisting mechanism,substantially as described, of the bucket-holding mechanism consisting of the yoke U, suspended upon the end of lever V,

fulcrumed to top of car-frame R, the bars T T,

having hooks t t, adapted to catch the projecting journals 8 s of sheave S, and the sheave Q adapted to operate with the said hoisting mechanism, substantially as described.

EZRA NICHOLSON.

Witnesses:

GEO. W. TIBBITTS, JOHN W. TAYLOR.

upon the application of Ezra Nicholson, of Cleveland, Ohi0,.the title of the invention was erroneously Written andprinted Hoisting and Conveying Machines, Whereas the said title should have been written and printed Electric Hoisting and Conveying Maehines and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, countersigned, and sealed this 26th day of August, A. D. 1890.

GEO. CHANDLER, ,7 First Assistant Secretary of the Interior.

[SEAL.]

Oountersigned ROBERT J. FISHER,

Acting Commissioner of Patents.

It is hereby certified that in Letters Patent No. 433,805, granted August 5, 1890, 

